removed the suspend from preExecute function to avoid double stopping in multigraph models

replaced else if with else in postExecute

add else if to check the smoke ascend test

improve the format

From: @jjfeing
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

From: @chenfei52
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @anancds
Reviewed-by: @wilfchen,@cristoval
Signed-off-by: @cristoval

From: @zhoufeng54
Reviewed-by: 
Signed-off-by:

From: @limingqi107
Reviewed-by: @cristoval,@wilfchen
Signed-off-by: @wilfchen

From: @limingqi107
Reviewed-by: @cristoval,@wilfchen
Signed-off-by: @wilfchen

From: @zhaozhenlong
Reviewed-by: @zhang_xue_tong,@zhanghaibo5
Signed-off-by: @zhang_xue_tong

From: @zhaozhenlong
Reviewed-by: @zhanghaibo5
Signed-off-by:

From: @anzhengqi
Reviewed-by: @jonyguo,@liucunwei
Signed-off-by: @liucunwei

From: @zoloft
Reviewed-by: @wangchengyuan,@wangchengyuan,@hangangqiang
Signed-off-by: @wangchengyuan

From: @probiotics_53
Reviewed-by: 
Signed-off-by:

From: @TFbunny
Reviewed-by: @tom__chen,@robingrosman
Signed-off-by: @robingrosman

From: @islam_amin
Reviewed-by: @john_tzanakakis,@tom__chen,@robingrosman
Signed-off-by: @john_tzanakakis

From: @sanshenghua2
Reviewed-by: @c_34,@oacjiewen
Signed-off-by: @c_34

From: @liu_xiao_93
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @irmo
Reviewed-by: @ginfung,@zh_qh
Signed-off-by: @zh_qh

From: @yuzhenhua666
Reviewed-by: @c_34,@oacjiewen
Signed-off-by: @c_34

From: @lyvette
Reviewed-by: @jpc_chenjianping,@zhanghaibo5
Signed-off-by: @jpc_chenjianping

From: @cjh9368
Reviewed-by: 
Signed-off-by:

From: @lx0095
Reviewed-by: @zhang_xue_tong,@hangangqiang
Signed-off-by: @zhang_xue_tong

From: @xu_anyue
Reviewed-by: @hangangqiang,@jpc_chenjianping
Signed-off-by: @hangangqiang